Answer:
The mass percent of copper as element is the same.
Explanation:
First of all we need the reaction that is presented below:
→ 
The mass percent of copper (Cu) as element is the same because of during the reaction the element only transform its nature from copper carbonate (
) to copper oxide (
), the latter is a solid and will remain in the system.
On the other hand, you will note that the global percentage mass will be small because of the reaction produce (
) that is a gas and this one will escape for the system.
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Solution :
From the balanced chemical equation, we can say that 1 moles of KBr will produce 1 moles of KCl .
Moles of KBr in 102 g of potassium bromide.
n = 102/119.002
n = 0.86 mole.
So, number of miles of KCl produced are also 0.86 mole.
Mass of KCl produced :
Hence, this is the required solution.
Answer:
(chemical) is that what you where asking
Explanation:
can i have a brainlist
Answer:
please where is the Gibb free energy to indicate if its exothermic or endothermic reaction but the chemical equation is homogeneous one.
Chlorine<span> is in group 17 of periodic table, also called the halogens, and is not found as the element in nature only as a compound.
Hope I helped Ya!</span>
